Composite materials are now central to advanced manufacturing across Australia – particularly in aerospace, defence, automotive, marine, and high-performance industrial sectors. However, laser cutting composite materials such as Carbon Fibre Reinforced Polymer (CFRP) presents significant technical challenges.
A recent white paper from Universal Laser Systems demonstrates how multi-wavelength hybrid laser technology dramatically improves composite laser processing performance by matching wavelength to material absorption characteristics.
For Australian manufacturers working with carbon fibre and multi-layer composites, this represents a meaningful advancement in quality, speed, and process control.
The Challenge of Laser Cutting Composites
Unlike homogeneous materials, composites combine components with very different optical and thermal properties.
In the case of CFRP:
- Carbon fibres absorb strongly in the near-infrared (1.062 µm)
- Epoxy matrix materials absorb strongly in the mid-infrared (10.6 µm)
When a single-wavelength laser is used:
- Excess heat transfer along fibres can occur
- Matrix delamination may result
- Heat-affected zones (HAZ) increase
- Structural integrity can be compromised
- Cutting speeds are limited
For Australian manufacturers seeking precision laser cutting of carbon fibre, these limitations can affect both part quality and production efficiency.
The Multi-Wavelength Hybrid Solution
The research demonstrates the use of a hybrid beam combining the following:
- 1.062 µm Yb-doped fibre laser
- 9.3 µm CO₂ laser
- 10.6 µm CO₂ laser
By combining both wavelengths into a single, co-aligned beam:
- The fibre laser efficiently vaporises carbon fibres
- The CO₂ laser simultaneously ablates the epoxy matrix
Documented Performance Improvements:
- 50% reduction in heat-affected zone
- Elimination of detached fibres
- 2× increase in cutting speed compared to fibre-only processing
For composite manufacturing in Australia, this means improved edge quality, better mechanical integrity, and higher throughput.
Applications for Australian Industry
Multi-wavelength laser processing is particularly relevant for:
- Aerospace composite components
- Defence lightweight structures
- Automotive carbon fibre parts
- Marine composite fabrication
- Advanced prototyping and R&D
- Flexible electronics manufacturing
The same platform also enables sequential multi-step processing, including:
- Selective conductor ablation
- Polymer marking
- Precision cutting of flexible substrates
This capability is valuable for emerging Australian manufacturing sectors such as printed electronics and advanced materials research.
Why Wavelength Matching Matters
Laser-material interaction is fundamentally governed by optical absorption. Matching laser wavelength to the absorption characteristics of each material component is essential when processing heterogeneous systems.
Multi-wavelength hybrid technology demonstrates that composite laser cutting performance improves significantly when each material receives the wavelength it absorbs most efficiently.
As Australian manufacturing continues to adopt advanced materials, precision laser systems that address composite-specific challenges will become increasingly important.
Applications in Research and Advanced Materials Development
Multi-wavelength laser processing is particularly suited to:
- University composite materials research
- CRC advanced manufacturing programs
- Defence materials R&D
- Functional coatings and layered materials
- Printed and flexible electronics development
- Rapid prototyping of experimental composite structures
For research environments, the ability to operate wavelengths independently or in a combined hybrid beam provides flexibility not typically available in conventional single-source laser platforms.
Supporting Advanced Materials Research in Australia
As Australian universities, CRCs, and advanced materials laboratories continue developing next-generation composites, lightweight structures, and functional materials, precise control of laser–material interaction becomes critical.
Multi-wavelength platforms provide researchers with the ability to independently control energy delivery at different wavelengths, enabling:
- Controlled study of wavelength-dependent absorption
- Selective ablation of multi-layer systems
- Reduced thermal damage during experimental processing
- Rapid prototyping without tooling constraints
Laser Resources works with research institutions and technical teams to evaluate laser configuration, wavelength selection, and process development strategies suited to emerging composite and functional material systems.
For laboratories investigating carbon fibre systems, flexible electronics, or multi-material architectures, technical consultation can help determine whether hybrid wavelength processing aligns with experimental objectives.
Further Reading
For a detailed technical explanation and experimental data, you can read the full white paper from Universal Laser Systems here
About Laser Resources
Laser Resources is an Australian leader in industrial laser sales, service, and support. With over 30 years of experience, we provide manufacturers with tailored laser solutions for cutting, welding, marking, and beyond.
For more information about Universal Laser Systems (ULS) or to request a demo, please contact Laser Resources at ua.moc.secruoserresal@selas or call us +61 3 3938 1655
